CN100375840C

CN100375840C - Reciprocating compressor

Info

Publication number: CN100375840C
Application number: CNB031298125A
Authority: CN
Inventors: 玄成烈
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2003-05-20
Filing date: 2003-05-20
Publication date: 2008-03-19
Anticipated expiration: 2023-05-20
Also published as: CN1548726A

Abstract

The present invention relates to a reciprocating compressor which comprises a frame arranged in a casing, a reciprocating motor fixed on the frame, a compressor unit combined with the reciprocating motor and making a straight reciprocating motion, a resonant spring unit for elastically supporting the vibration part of the compressor unit, a piston body in a cylindrical structure for inserting the compressor unit in a sliding mode, a diffused piston flange in a disk shape bent at the tail end of the rear side of the piston body, an extended frame supporting part in a cylinder shape bent at the outer column surface of the piston flange and used for supporting a magnet to combine with a magnet frame, and an integral piston combined with the piston flange and an extended spring supporting part. Because components with the concentricity needing to be adjusted have no need to be respectively installed, the present invention has the advantages that the assembling performance of the compressor is enhanced, deviation among all the components caused by assembling tolerance is prevented, and abrasion or noise in the process of the operation of the compressor can be reduced.

Description

Reciprocal compressor

Technical field

The present invention relates to a kind of compressor, particularly relate to a kind of reciprocal compressor of piston main body and magnet flange part and spring support member being made one.

Background technique

Usually, reciprocal compressor sucks by the to-and-fro motion of piston in cylinder and compression and output gas, and Fig. 1 is existing reciprocal compressor embodiment's a longitudinal cross-section schematic representation; Fig. 2 is the longitudinal cross-section schematic representation that separates each parts in order to illustrate mover in the existing reciprocal compressor and piston and spring to support the combination of platform.

As seen from the figure, existing reciprocal compressor comprises: the casing 10 that possesses sucking pipe SP and outlet pipe DP; Be arranged on the frame 20 of casing 10 inside; Be fixed on the frame 20, and its mover 33 is made the reciprocable machine 30 of straight reciprocating motion; Be fixed on the frame 20, and combine the compressor bank 40 of suction and pressurized gas with the mover of reciprocable machine 30; Elasticity is supported the mover 33 of reciprocable machine 20 and the piston 42 of compressor bank 40, induces the resonant spring group 50 of the resonance motion of mover 33 and piston 42 to constitute.

Frame 20 comprises: support the cylinder 41 and the piston 42 of compressor bank 40 simultaneously, and support the anterior frame 21 of reciprocable machine 30 1 ends; Combine the intermediate stand 22 of supporting reciprocable machine 30 the other ends with anterior frame 21; Combine with intermediate stand 22, support the rear portion frame 23 of resonant spring group 50 to constitute.

Reciprocable machine 30 comprises: be fixed between anterior frame 21 and the intermediate stand 22, be positioned at the outer stator 31 of cylinder 41 inside; Be arranged on the internal stator 32 of anterior frame 21 outer cylinders with the inboard of outer stator 31 certain clearance of being separated by; Be clipped in the gap between outer stator 31 and the internal stator 32 and combine, and constitute with the mover 33 that piston 42 carries out straight reciprocating motion with the piston 42 of compressor bank 40.

Mover 33 comprises and being clipped between outer stator 31 and the internal stator 32, constitutes at magnet frame 33A that has pasted several magnet M on the circumferencial direction on the outer cylinder and magnet flange 33B that magnet frame 33A is connected on the piston 42 for constituting magnetic circuit.On the binding end of magnet frame 33A and magnet flange 33B, be provided with

joint

33a, 33b with " " type section of being convenient to mutually combine and " " type section.

Compressor bank 40 comprises: insert the cylinder 41 that is fixed on the anterior frame 21; Combine reciprocating piston 42 in the compression volume P of cylinder 41 with the mover 33 of reciprocable machine 30; Be arranged at the head end of piston 42, limit the Aspirating valves 43 of suction refrigerant gas by the suction passage F of switch plunger 42; Be arranged on cylinder 41 outlet sides, come the outlet valve 44 of limit compression gas output to constitute by switch compression volume P.

Piston 42 comprises: adopt columnar structuredly, make inside possess suction passage F, the piston main body 42a of the compression volume P inside that is inserted in cylinder 41 of sliding; Being arranged on the 42b of piston flange portion that the rear end of piston main body 42a combines with magnet flange 33B constitutes.

Resonant spring group 50 comprises: the spring that connects piston 42 with mover 33 is supported platform 51; Middle across spring support platform 51, under the support of both sides, front and back, induce the anterior resonant spring 52 and the rear portion resonant spring 53 of the resonance motion of mover 33 and piston 42 to constitute.

Spring supports platform 51 to adopt loop configuration, comprising: the joint 51a that combines with magnet flange 33B piston flange 42b; Circumferencial direction diffusion along joint 51a is outstanding, supports the 51b of several support parts of each

resonant spring

52,53 to constitute.

Unaccounted symbol B represents assembling bolt among the figure.

The working procedure of above-mentioned existing reciprocal compressor is as follows.

That is, after 31 energisings of the outer stator of reciprocable machine 30, externally produce magnetic flux between stator 31 and the internal stator 32, mover 33 and piston 42 are moved along magnetic direction, under the effect of resonant spring group 50, do straight reciprocating motion.Meanwhile, piston 42 is done straight reciprocating motion in cylinder 41 inside, and causes pressure difference in the compression volume P of cylinder 41, and absorption refrigeration agent gas is exported after it is compressed to certain pressure.

But, in above-mentioned existing reciprocal compressor, because of mover 33 and piston 42 and spring support that platform 51 is to make the back assembling separately, therefore amount of parts is more, reduced the operation of assembling, and, be difficult to the center of each part of alignment because of machining error or the assembly error of each component, each component are interfered mutually thus, and the noise that weares and teares bigger the time is also higher.

Summary of the invention

Technical problem to be solved by this invention is, provide a kind of mover and piston and spring of not only can aliging easily to support platform, make the matching effect that reaches best each other, and can make packing engineering simpler, and reduce the wearing and tearing that the interference between the component causes and the reciprocal compressor of noise.

The technical solution adopted in the present invention is: a kind of reciprocal compressor is comprising: the frame that is arranged on casing inside; Be fixed on the reciprocable machine that power is provided on the frame; Combine with reciprocable machine, do the to-and-fro motion of straight line, suck the also compressor bank of compression refrigerant gas thus; Elasticity supports the vibration section of compressor bank to make in the compressor that its resonant spring group of carrying out resonance motion constitutes, and provides to comprise: to be inserted in the cylinder interior of compressor bank in order sliding and to adopt the piston main body of cylinder type; On the end of piston main body rear side, bend to the piston flange of discoid diffusion; Bend to the frame support portion of cylindric extension at the outer cylinder of piston flange in order to combine with the magnet frame of supporting magnet; For the resonant spring of supporting the resonant spring group forms the also one-piece type piston of the spring support member formation of extension of one with piston flange, described spring support member is outstanding along the circumferencial direction diffusion at the outer cylinder of piston flange, and anterior resonant spring and rear portion resonant spring are separately positioned on the place ahead and the rear of spring support member.

Reciprocal compressor of the present invention is all made mover flange and piston main body and piston flange and spring support member and is assembled after one or part are made one, therefore the component for needs adjustment concentricity need not to install respectively, not only improved the assembling performance of compressor, skew between each part that has also prevented to cause because of the assembling tolerance can reduce contingent wearing and tearing or noise in the compressor operation process thus.And when the spring support member moulding, make the interval that overlaps between anterior resonant spring and the rear portion resonant spring, reduce the axial length of compressor thus, thereby can realize miniaturization.

Description of drawings

Fig. 1 is existing reciprocal compressor embodiment's a longitudinal cross-section schematic representation;

Fig. 2 is the longitudinal cross-section schematic representation that separates each parts in order to illustrate mover in the existing reciprocal compressor and piston and spring to support the combination of platform;

Fig. 3 is a reciprocal compressor embodiment's of the present invention longitudinal cross-section schematic representation;

Fig. 4 is in reciprocal compressor of the present invention, a part of structure on the mover and piston and spring is supported the longitudinal cross-section schematic representation of the one-piece type oscillator that platform is made of one;

Fig. 5 is in reciprocal compressor of the present invention, the longitudinal cross-section schematic representation of the one-piece type oscillator that a part and the piston of mover are made one;

Fig. 6 is in reciprocal compressor of the present invention, supports platform to make the longitudinal cross-section schematic representation of the one-piece type oscillator of one in piston and spring;

Fig. 7 is in reciprocal compressor of the present invention, supports platform to make the longitudinal cross-section schematic representation of the one-piece type oscillator of one on a part and the spring of mover.

Wherein:

31,131: outer stator 32,132: internal stator

33,133: mover 33A, 133A: magnet frame

33B, 133B:

magnet flange

33a, 33b, 133a, 133b: joint

133c: fixed projection 133d: fixed groove

42,142:

piston

42a, 142a: piston main body

42b, 142b: piston flange portion 51,151: spring support member

52,53,152,153: resonant spring M: oscillator

Embodiment

Below, in conjunction with the accompanying drawings reciprocal compressor of the present invention is described in detail.

Fig. 3 is a reciprocal compressor embodiment's of the present invention longitudinal cross-section schematic representation; Fig. 4 is in reciprocal compressor of the present invention, a part of structure on the mover and piston and spring is supported the longitudinal cross-section schematic representation of the one-piece type oscillator that platform is made of one; Fig. 5 is in reciprocal compressor of the present invention, the longitudinal cross-section schematic representation of the one-piece type oscillator that a part and the piston of mover are made one; Fig. 6 is in reciprocal compressor of the present invention, supports platform to make the longitudinal cross-section schematic representation of the one-piece type oscillator of one in piston and spring; Fig. 7 is in reciprocal compressor of the present invention, supports platform to make the longitudinal cross-section schematic representation of the one-piece type oscillator of one on a part and the spring of mover.

As shown in Figure 3, reciprocal compressor of the present invention comprises: the casing 110 that possesses sucking pipe SP and outlet pipe DP; Be arranged on the frame 120 of casing 110 inside; Be fixed on the frame 120, and make oscillator M make the reciprocable machine 130 of straight reciprocating motion; Be fixed on reciprocable machine 130 and the frame 120, and by the to-and-fro motion of oscillator M, suck and the compressor bank 140 of pressurized gas; Elasticity is supported oscillator M, and the resonant spring group 150 of inducing oscillator M to carry out resonance motion constitutes.

Frame 120 comprises: insert the cylinder 141 of compressor bank 140, support the anterior frame 121 of an end of reciprocable machine 130; Combine the intermediate stand 122 of the other end of supporting reciprocable machine 130 with anterior frame 121; Combine with intermediate stand 122, support the rear portion frame 123 of resonant spring group 150 to constitute.

Reciprocable machine 130 comprise outer stator 131 and internal stator 132 and be clipped in outer stator 131 and internal stator 132 between, and constitute the mover 133 that oscillator carries out straight reciprocating motion with the piston 142 of compressor bank and constitute.

As shown in Figure 3, Figure 4, mover 133 comprises and being clipped between outer stator 131 and the internal stator 132, for constitute magnetic circuit the magnet frame 133A that has pasted several magnet 134 on the circumferencial direction on the outer cylinder and after be assembled on the magnet frame 133A, the magnet flange 133B that forms one with piston flange 142b constitutes.On the binding end of magnet frame 133A and magnet flange 133B, be provided with joint 133a, 133b with " " type section of being convenient to mutually combine and " " type section, and be provided with banded fixed projection 133c on the joint 133a of magnet frame 133A therein, and the joint 133b of corresponding magnet flange 133B goes up the fixed groove 133d of the band shape that the increase adhesive strength should be set with it.

Compressor bank 140 comprises: insert the cylinder 141 that is fixed on the anterior frame 121; Slide type inserts in the cylinder 141, the piston 142 that constitutes oscillator M with the magnet flange and the spring support member 151 of reciprocable machine 130; The Aspirating valves 143 of the suction passage F of switch plunger 142; The outlet valve 144 that constitutes the compression volume p of cylinder with Aspirating valves 143 constitutes.

Piston 142 comprises: adopt columnar structuredly, make inside possess suction passage F, and slide type is inserted in the piston main body 142a of the compression volume P inside of cylinder 141; Be arranged on rear end and the diffusion of piston main body 142a, the 142b of piston flange portion that forms one with magnet flange 133B and spring support member 151 constitutes.

Resonant spring group 150 comprises: form the spring support member 151 of one with the 142b of piston flange portion of the magnet flange 133B of mover 133 and piston 142; Middle across spring support member 151, under the support of both sides, front and back, induce the anterior resonant spring 152 and the rear portion resonant spring 153 of the resonance motion of oscillator M to constitute.Spring support member 151 forms one with piston flange 142b, and is outstanding along the circumferencial direction diffusion at the outer cylinder of piston flange 142b, so that in the wings during projection, form the petal apperance.And, spring support member 151 is when side projection, support that a part of structure of rear portion resonant spring 153 is consistent on vertical line with piston flange 142b, and its rear side on each position between the spring support member 151, another part structure of the anterior resonant spring 152 of support should replace and bends to " " type backward.

Part same as the prior art has been used identical symbol among the figure.

Unaccounted symbol B represents assembling bolt among the figure.

The working procedure of above-mentioned reciprocal compressor is as follows.

Promptly, during the assemble compressible machine, after on the frame 120 outer stator 131 and internal stator 132 of reciprocable machine 130 being installed earlier, insert the mover 133 that combines with piston 142 in the centre, and on mover 133 and piston 142 in conjunction with spring support member 151, to support anterior resonant spring 152 and rear portion resonant spring 153.

Here, want accurately the position of mover 133, so that the interior external series gap between outer stator 131 and the internal stator 132 is identical, and piston 142 will insert cylinder 141 inside that are fixed on anterior frame 121 with slide type, spring support member 151 is also concentric with piston 142, and the to-and-fro motion of oscillator M is just stable like this.

At this moment, as previously mentioned, when the piston main body 142a of the magnet flange 133B of formation mover 133 and formation piston 142 and piston flange 142b and spring support member 151 form one, because of can a step assembling each component, not only can reduce assembling procedure, can also align the easily center of each part, the component skew that has prevented the assembling tolerance to cause thus, and prevent issuable wearing and tearing and noise in the compressor operation thus.

And, when connecting magnet flange 133B and magnet frame 133A, on binding site, be provided with projection 133c and groove 133d, can strengthen the engaging force of two

parts

133A, 133B thus.

And, when spring support member 151 moulding, make the interval that overlaps between anterior resonant spring 152 and the rear portion resonant spring 153, reduce the axial length of compressor thus, thereby can realize miniaturization.

Simultaneously, second embodiment's of the present invention is constructed as follows.

Promptly, in the foregoing embodiments, magnet flange 133B and piston main body 142a and piston flange 142b and spring support member 151 are to form one, but in the present embodiment, as shown in Figure 5, after magnet flange 133B and piston main body 142a and piston flange 142b made one, make spring support member 151 separately, and assembling oscillator M.

As shown in Figure 6, the 3rd embodiment of the present invention is after piston main body 142a and piston flange 142b and spring support member 151 are made one, to make magnet flange 133B separately, and assembling oscillator M.

As shown in Figure 7, the 4th embodiment of the present invention is after piston main body 142a and piston flange 142b are made one, again magnet flange 133B and spring support member 151 to be made one, and on piston flange 142b assembling oscillator M.

In all above examples, can reduce assembly program, the center of being convenient to adjust each component makes its unanimity, and reduces contingent wearing and tearing and noise in the compressor operation.

Claims

1. a reciprocal compressor is comprising: be arranged on the inner frame (1 20) of casing (1); Be fixed on the reciprocable machine of power (130) is provided on the frame (120); Combine with reciprocable machine (130), do the to-and-fro motion of straight line, suck the also compressor bank (140) of compression refrigerant gas thus; Elasticity supports the vibration section of compressor bank to make in the compressor that its resonant spring group (150) of carrying out resonance motion constitutes, and provides to comprise: the cylinder (141) that is inserted in compressor bank (140) in order to slide is inner and adopt the piston main body (142a) of cylinder type; On the end of piston main body (142) rear side, bend to the piston flange (142b) of discoid diffusion; Bend to the frame support portion (133B) of cylindric extension at the outer cylinder of piston flange (142b) in order to combine with the magnet frame (133A) of supporting magnet; For the resonant spring (152,153) of supporting resonant spring group (150) forms the also one-piece type piston (142) of spring support member (151) formation of extension of one with piston flange (142b), it is characterized in that, described spring support member (151) is outstanding along the circumferencial direction diffusion at the outer cylinder of piston flange (142b), and anterior resonant spring (152) and rear portion resonant spring (153) are separately positioned on the place ahead and the rear of spring support member (151).

2. reciprocal compressor according to claim 1, it is characterized in that, spring support member (151) is in order to make anterior resonant spring (152) and rear portion resonant spring (153) overlapping, and at least one in the part of the spring support member (151) of the part of the spring support member (151) of support front springs (152) and support rear portion resonant spring (153) is that bending forms.

3. reciprocal compressor according to claim 1 is characterized in that, frame support portion (133B) and magnet frame (133A) are provided with joint (133a, 133b) in order to mutually combine.

4. reciprocal compressor according to claim 3 is characterized in that, the side in the junction plane of joint (133a, 133b) has formed projection, and corresponding opposite side has formed the groove that inserts described projection.